package thread;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class SyncApiDemo2 {
    public static void main(String[] args) {
//        List<Integer> list = new ArrayList<>();
//        List<Integer> list = new LinkedList<>();
        List<Integer> list = Collections.synchronizedList(new ArrayList<>());
        Thread t1 = new Thread(()->{
            for (int i=0;i<1000;i++){
                list.add(i);
            }
        });
        Thread t2 = new Thread(()->{
            for (int i=0;i<1000;i++){
                list.add(i);
            }
        });
        t1.start();
        t2.start();

        try {
            Thread.sleep(40);
        } catch (InterruptedException e) {
        }
        System.out.println(list.size());
    }
}
